Machine for covering wire or other cores



Sept.. 2 1924. 1 1506,871

E. E. WAIEE MACHINE F0! COVERING WIRE OR OTHER CORBS Filed April 6,1922. I5 Sheets-Sheet 1 avwmboz $5 (l 6 60mm.

"Se t. 2. 1924.- 1,506,871

E. E. WAITE MACHINE FOR COVERING WIRE on b'rusa corms Filed April 6,1922 3 s ee s-shee z (imam/two if WA/Tf. 35 W (l-thou L3 Sept, 2. 1924,.I 1,506,871

E. E..WAITE MACHINE FOR COVERING WIRE OR OTHER GQRBS I Filad April 5,1922 S'Sheete-Sh eat 5 nome; [I WA/Vf. 553A fltiozueq To. all whom :itmay concern:

Patented Sept, 2 1924 i l w UNITED STATES Application filed April e,

Be it known that I, EDWIN E. WAI'rE, a

. citizen :of the United States, residing at form.

Framingham, county ofMiddleseX, State of" Massachusetts, haveinvented'acertainnew and useful Improvements in Machines for CoveringWire or Other Cores, of which the following is a full, clear, and exactdescript1on. i i

The present invention relates to amachine for covering. wire or othercore with roving particularly 'of, asbestos fibre, and has for itsobject to provide a .novel and improved machine of this character.

The several featuresof the invention will be clearly understood from thefollowing description and accompanying drawings, in

V which Fig. 1 isa front view, partly broken away and partly in section,of a machine-that may be employed in producing my improved insulatedconductor. in accordance with 'my improved method; g

Fig. 2 is a sectional plan viewfon'an enlarged scale taken on the line2'2 of Fig. 1- showing particularly a portion of the winding mechanismof the machine,

Fig. 3 is a detail front elevation, partly in section, of a portion ofthe machine, ihog'ing particularly a part of" the winding .Fig. 4 is asectional view, partlyinelevation, taken'on the line 4-4 of Fig. 3;

Fig. 5 is a vertical sectional view, partly in elevation, of a portion.of the machine showing particularly. the winding mechanism anditsdriving mechanism; and

. Fig.6 is an elevation .of the insulated or. covered conductor or WlIB,in its preferred The frame of the machine illustrated in the drawings isprovided with legs 2, horizontal supporting plates 4 and 6, and-a pairof vertical side standards8 mounted on the plate 6. The operatingmechanism of the machine comprises .a wiping head 10: and a wiretake-upor delivery mechanism comprising a delivery drum 12 which iscarried by a shaft 14 having its endsjo'urnaled in suitable bearings inthe upper ends of the standards 8, the wirepassing one or more timesaround the'deliverv drum after leaving the wiping head. The wipingheadis. carried on the upper end of a vertical hollow shaftv or spindle 16,the lower portion of which extends through and is journaled in 1,506,871PATENT OFFICE. Q

i EDWIN-E. WAITE, OF FRAMINGHAM M ASSIAQEUSETTS, I

1922. Serial No. 556,216..

passing through the hollow spindle 16 and the wiping head. The spindle16 and the delivery drum 12 are driven in proper timed relation throughsuitable connections with a driving pulley'18 on the base of themachine.

The wiping head-is provided with a base 20 having an inverted 'U-shapedframe; 22

ing head is further provided with a pair of 1;; I mcnnvn nonCOVI'ERINGWIRE 0 0mm oonns.

projecting upwardly therefrom. The wip--x upwardly and inwardly,inclined and upwar'dly tapered. rolls 24, the'ends of which are mountedon conical bearings in the base of the wiping head and in the top partof..

the frame 22 so as to'be freely rotatable.

The wipinghead is also provided with a presser plate 26 .havingits innersurface in clined downwardly and outwardly, the

presser plate-and rolls 24 being relatively arranged so as to-contactat-substantially equally spaced points with the wire. The

plate 26 is loosely mounted on apin 28 hav- 7 ing its lower end securedin the base 20' of The plate 26 is pressedthe wiping head. 7 upon thewrapped wireby -means of a spring 30.0oiled about the pin '28 and havingone end engagingthe plate and its other end secured to the pin. Theplate 26- 1s movably mounted on the pin 28,- being inter posed betweenthespring 30 and a nut'32 secured to the upper end of the pin, the

pressure of the plate. being capable of adjustment by the rotation ofthenut'32 and ,pin 28, which areheld in adjusted position by a set screw33. -The wiping head is also provided with a horizontal guideroll 34-having its ends mounted on conical bearings on the base of the .head. Aribbon deflecting member. is arranged between the guide 1 roll 34 andthe conical rolls 24, which comprises a wire havinga portion 36 nclined"tothe horizontal and downwardly ,extending vertical end portions 40secured inthe set screws 37.

A table 42 is mounted on; the vertic aal I spindle-16below thewiping'head and'isi'sebase. The wire is adjustablysecured by upper endof a supporting pin 50 ex tendir'ig, "I

through the. sleeve and having its lower end secured to the table 42,the guide roll being held from lateral swingin' movement on thesupporting pin 50 by means of a hear ing collar 52 secured in the lowerend of the sleeve and surrounding the supporting pin which constructionenables the guide roll to be of light weight and to turn freely on itssupporting pin. 7

'A cop support 54 is mounted on the spindle 16 adjacent the top of thetable 42. The cop supportis made of light sheet metal such as aluminumso as to have a little inertia and is provided with an upwardlyprojecting thimble or shank 56 which is secured to a carrier 58 mountedon a ball bearing 60 on the spindle 16. The ball bearing 60 comprises afixed ball retaining cone 62, and a retaining cone 64 mounted to slideon the spindle 16. The retaining cone 64 is pressed toward the retaining cone 62 by a spring 66 coiled about the spindle 16and'interposed between the cone and a nut 68 screw-threaded on thespindle. The spring 66 is for the purpose of placing a slight drag onthe cop. support and its carrier. the tension of which may beadjustedfby adjusting the nut .68, a lock. nut 69 being provided for thenut 68.

The machine is particularly adapted for producing the insulatedorcovered conductor or wire illustrated in Fig. 6 of the drawings, inwhich the covering consists of a plurality of rovings 70 of asbestosfibre arranged side by side and wound in closed COilsor helices with therovings matted together'to form a substantially uniform cohering mass.The .rovings are supplied to the machine in a cop 72 which is made up ofa flat ribbon 74 of rovings, which in the present instance consists offive arranged side by side, the ribbon being wound in crossed helices ona paper tube or core 76'. In setting the machine for operation apluralityof cops are supplied to the machine before the wire is threadedthrough the wiping head, and the cop first to be used is applied to. thecop support 54 by slipping the cop tube or core over the shank 56 of thesupport, the extra or reserve cops being supported on a cop supportingtube 78 through which the wire passes when the machine is in operationas in ordinary winding machines. After a cop is placed on the copsupport 54, the wire is threaded through the wiping head, and copsupporting tube 78, and wound one or more times about the delivery drum12. The end of the fiat ribbon 74 of roving is then passed around thevertical guide roll 46. then over the horizontal guide roll 34, thenbeneath the deflecting member 36, and then to the wire whereit is coiledone or more times about the wire at a point adjacent to the taper-' ingrolls 24, the presser plate 26 being swung back from the wireto enablethe operator to easily apply the ribbon to the wire. The ribbon is thusapplied to the wire in a substantially flat condition, the deflectingmember 36 determining the angle at which the ribbon. isfinally presentedto the wire.

It will be apparent when the machine is thrown into operation that theribbon will be freely delivered to the wire and wound helically thereonin closed coils, the spindle 16 and parts carried thereby constituting awinding head; that the tapering rolls 24 will operate to apply agradually and progressively increasing pressure to the forming endportion of the covering to uniformly mat it about the wire; and that thepresser plate 26 will act to. burnish and smooth the covering uniformlyand to cooperate. with the rolls' 24 to form the covering into auniformly cohering mass "of uniform character and texture throughout. 7

It has been found that asbestos rovings of long or short fibre may beused. in the machine illustrated in the drawings without be so placed inthe machine that its "un winding movement is in the same direction asthe rotation of the rotating table 42.

In the drawings the wire on which the asbestos rovings are to be Woundis shown as provided with a coating orcovering 80 of rubber, but it willbe apparent that, the

machine may also be used for covering' hare wire or other material withasbestos or other roving. I

As will be evident to those skilled in the artmy invention permitsof-variou's modifications without departing from the spirit thereof orthe scope of the appended claims.

W'hatIclaimis: "'7

1. A machine for cOV E a Q iw roving having; incombinatio'rn a rotatingwindmg head. means for feeding the core axially through the head. meansmounted on the head for feeding apluralityl of parallel, rovings to' thecore whereby they are wound on the core. and a pair of freely rotatabletapering rolls carried by the head and arranged at opposite sides of thecore for applying a gradually increasingpressure to the v rovings asthey are being applied tothe core.

2. A machine for' cove ring a core with roving having, in combination. arotating winding head. means for feeding the core axially through thehead. means mounted-.on

the head for feeding a plurality of parall el rovings to the corewhereby they are wound on the core, and a pair of freely rotatabletapering rolls and a spring pressed plate acting on the rovings as theyare applied roving having, in combination, a rotating.

winding head, means for feeding the core axially through the head, meansmounted on the head for feeding a plurality of parallel rovings to thecore whereby they are wound 011 the core, and pressure applying devicescarried by the head and contacting with the rovings after they are woundon the core at three points equally spaced about the periphery of thecore for applying a gradually increasing pressure to the roving.

4. A machine for covering a core with a flat ribbon composed of aplurality of rovings of asbsetos fibre or the like arranged side by sidehaving, in combination, a hollow shaft vertically arranged through whichthe core is fed, devices arranged at the upper end of the shaft forapplying and matting the roving about the core as the core emerges fromthe upper end of the shaft, a support for a cop of said ribbon of rovingmounted on ball-bearings below said devices so as to be freely rotatablewith relation to said shaft, and having its axis of rotation inalinement with said shaft, and a guide roll carried by said shaft androtatable relatively thereto, said roll having its axis parallel to andspaced away from the axis of said shaft, and acting to guide the ribbonof the roving from said cop to said devices.

5. A machine for covering a core with a flat ribbon composed of aplurality of rovings of asbestos fibre orthe like arranged side by sidehaving, in combination, a 1101 low shaft vertically arranged throughwhich the core is fed, devices arranged at the upper end of the shaftfor applying and matting the roving about the core as the core emergesfrom the upper end of the. shaft, a

support for a cop of said ribbon ofroving mounted to turn freely aboutsaid shaft, and means for guiding the ribbon from said cop, said devicescomprising a roll in the form of a sleeve, and a vertical bearing pinspaced from and'carried by said shaft, the upper ends of said pin andsleeve havinga needle point bearing between them whereby said sleeve ishung on the upper end ofthe pin and is freely rotatable. I

6. A machine for covering a core with a fiat ribbon composed of aplurality of rovings of asbestos fibre or the like arranged side by sidehaving, in combination, a 1101- low shaft vertically arranged throughwhich the core is fed, devices arranged at the upper end of the shaftfor applying and matting the roving-about the core as the core emergesfrom the upper end of the shaft, comprising freely rotatable rollsadapted to contact directly with the ribbon upon said core, asupport oflittle weight and low specific gravity mounted on said hollow shaft andfreely rotatable with relation to said shaft, and a freely rotatableroll carried by, spaced from and having its axis parallel with saidshaft for guiding the ribbon of roving from said cop to said devices.

EDXVIN. E. VVAITE.

